Home / 13,859.74-20,789.55-3,471.46

Finding the Fourth Proportional to 13,859.74, 20,789.55 and 3,471.46

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Solution

The fourth proportional to 13,859.74, 20,789.55 and 3,471.46 is: 5,207.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.74 : 20,789.55 = 3,471.46 : x
  2. Step 2: Convert to fraction form
    13,859.74/20,789.55 = 3,471.46/x
  3. Step 3: Cross multiply
    13,859.74x = 20,789.55 × 3,471.46
  4. Step 4: Simplify right side
    13,859.74x = 72,170,091.24
  5. Step 5: Solve for x
    x = 72,170,091.24/13,859.74
  6. Step 6: Final answer
    x = 5,207.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.